Activity Mat Sensory Development Silicone...Play, Learn, Create $1 from Each Sale Goes to Support Project Pluma in Mexico. Help the Children Get Needed Supplies. 28.5" Wide by 18.5" Deep, Silicone Craft and Developmental Activity Non-Slip Mat Stays in Place for Easy Play and Creativity! Great for Homeschoolers! Large Enough to Allow Children to be Creative Without Making a Mess on Table! Great for Toddlers, Pre-K, Kindergartners, Puzzles, Model Car Projects, Adult Projects. So Many Uses! Easy-to-Clean up After Activity is Over. Roll up and Store When Done. Dishwasher Safe on top Rack.